Heavy Duty Power Equipment
36B, 36BX, 36H, 36HX, 52H, 52HX
About the DEK Belt Drive Lawn Mower Manual
Congratulations on the purchase of your new DEK commercial mower. We at GXi International are confi-
dent that this mower will provide you with the best performance, outstanding quality, and great
durability when operated and maintained as directed in this manual.
1. This manual contains assembly, operating, safety, adjustment, maintenance, and troubleshooting instructions.
BEFORE OPERATING YOUR LAWN MOWER, CAREFULLY READ THIS MANUAL IN ITS ENTIRITY.
2. This owner’s manual is considered a permanent part of the mower. It must be available to all of the operators
and/or person(s) servicing the mower. Should the mower be resold, this manual must remain with the mower.
3. All information, illustrations, and specifications contained in this manual were in effect at the time of the publica-
tion. GXi International reserves the right to add, delete or modify specifications and/or designs without notice.
4. If you ever have questions in regards to the operation, maintenance or safety of your mower, please contact the
DEK technical service line at 1-800-393-0668.
Table of Contents
Safety Information
Safety Warnings .………………………………………………………………...…………………………………………..
Before Use of Equipment …………………………………………………………………………………………………...
Operation of Equipment – Safety Cautions ………………………………..……………………………………………...
Safety Information Decals …………………………………………………………………………………………………..
4
4
4
5
Operating the Mower
Product Specifications………………………………………………………………………………………………………..
Control Panel Component Identification…………………..…………...…………………………………………………..
Lawn Mower Component Identification...…………………………………………………………………………………...
5
6
6
Assembly Instructions…………………………………………………………………………………………….7 through 11
Starting the Engine………………………………………………………………………………………………………....
Moving Forward.………………………………………………………………………………………………………………
Turning the Mower……………………………………………………………………………………………………………
Stopping the Mower…………………………………………………………………………………………………………..
Moving in Reverse……………………………………………………………………………………………………………
Mowing………………………………………………………………………………………………………………………...
Changing Cut Height..………………………………………………………………………………………………………..
Removing Blades…………………………………………………………………………………………………………….
12
12
12
12
12
13
14
14
Service and Maintenance
Maintenance Schedule………………………………………………………………………………………………...……
Fuel…………………………………………………………………………………………………………………………….
Engine Oil……………………………………………………………………………………………………………………..
Air Filter……………………………………………………………………………………………………………………….
Tire Pressure…………………………………………………………………………………………………………………
Blades…………………………………………………………………………………………………………………………
Cleaning the Mower………………………………………………………………………………………………………….
Lubrication Points…………………………………………………………………………………………………………….
15
15
15
15
15
15
15
16
Adjustments
Drive Belt Adjustments……………………………………………………………………………………………………….
Wheel Brake Adjustments…………………………………………………………………………………………………….
17
17
Engine to Blade Belt………………………………………………………………………………………………………….
Blade to Blade Belt…………………………………………………………………………………………………………..
Engine to Transmission Belt………………………………………………………………………………………………..
Safety Interlock System……………………………………………………………………………………………………..
17
17
18
18
Troubleshooting Guide……………………………………………………………………………………………………………..
Warranty……………………………………………………………………………………………………………………………...
19
22
DEK® is exclusively distributed by GXi International, LLC
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Rev: 8/2008
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Heavy Duty Power Equipment
36B, 36BX, 36H, 36HX, 52H, 52HX
Safety Information and Warnings
Mower Inspection
This owner’s manual is considered a permanent part of the lawn
mower and should remain with the lawn mower if resold. The
information and specifications included in this publication were
in effect at the time of approval for printing.
For your safety, inspect the lawn mower before each use of op-
eration. In order to inspect your lawn mower, the following condi-
tions should be met: the lawn mower should be on a flat and level
surface, with the ignition switch off, key removed, and blades dis-
engaged. Also the spark plug wire should be off of the spark plug.
GXi International, LLC, exclusive marketer of DEK Heavy Duty
Power Equipment, reserves the right to discontinue or change
specifications or design at any time without notice and without
incurring any obligation whatsoever. No part of this publication
may be reproduced without written permission.
1. Walk around the mower and look for any fluid spills or leaks
on or underneath the mower. Remove any and all exces-
sive debris, dirt, and/or fluids.
2. Look for signs of damage or excessive wear. Check the
tightness of all nuts, bolts, pins, and screws. Tighten any
that may be loose and replace any that are missing.
3. Be sure the safety interlock controls are operating properly
so that the engine cannot be started unless the ground
speed control lever is in neutral and the blades are disen-
gaged.
4. Check the mower blades for any damage or abnormal wear
and replace in sets so that they are balanced.
5. Check the tire pressure on all four tires. See page 15 for
instructions
EMISSION CONTROL SYSTEM INFORMATION
The U.S. and California Clean Air Acts
EPA and California regulations require all manufacturers to fur-
nish written instructions describing the operation and mainte-
nance of emission control systems. The following instructions
and procedures must be followed in order to keep the emissions
from your DEK engine within the emission standards.
SAFETY LABEL LOCATIONS
These labels warn you of potential hazards that can cause seri-
ous injury. Read them carefully. If a label comes off or becomes
hard to read, contact your DEK lawn mower dealer for a re-
placement.
6. Check the belts for proper wear and correct tension. See
pages 17 and 18 for instructions.
7. Check engine oil and air filters as recommended by the en-
SAFETY INFORMATION
Operation of Equipment - Safety Cautions
DEK lawn mowers are designed to give safe and dependable
service if operated according to instructions. Read and under-
stand this owner’s manual before operating your lawn mower.
WARNING
DANGER: GASOLINE IS HIGHLY FLAMMABLE AND EXPLO-
SIVE. Do not add fuel while the engine is running or is hot.
Keep open flames, sparks, and heat away from the fuel and
store fuel in containers specifically designed for that purpose.
ADD FUEL OUTDOORS ONLY AND IF THE FUEL IS SPILLED,
DO NOT START THE ENGINE. Manually push the mower away
from the spill and wipe up immediately.
OPERATOR RESPONSIBILITY
Know how to stop the lawn mower quickly in case of emer-
gency. Understand the use of all lawn mower controls, output
receptacles, and connections. Be sure that anyone who oper-
ates the lawn mower receives proper instruction. Do not let
children operate the lawn mower without parental supervision.
1) Do not operate the engine in a confined space where dangerous carbon
monoxide fumes can collect. Carbon monoxide is odorless, tasteless,
and can be fatal.
2) Mow only in daylight.
3) Make sure the mower is in neutral and the blades are disengaged be-
fore attempting to start the engine.
4) Do not stop or start suddenly when going uphill. Never use riding at-
tachments on slopes since there is an increase risk that they might roll
over.
WARNING
Do not use your DEK lawn mower to carry passengers. When
people, especially children, an pets are close by, avoid mowing
since rotating blades can throw rocks and other items, which can
cause serious injury.
5) Avoid steeps slopes and use extreme caution when changing directions
while operating on a slope.
Before Using Your DEK Lawn Mower
CAUTION
6) Be extremely careful when operating on a slope or when the grass is
damp or wet. Reduced traction could cause sliding. Never mow by
pulling the mower back towards you because you might slip.
7) Watch for traffic when crossing surfaces other than grass (i.e. transport-
ing) loading a trailer or vehicle, or when the mower is not in use.
8) Never operate the mower with defective guards, shields, or without the
safety devices securely mounted in place.
9) Never direct discharge of material toward bystanders nor allow anyone
near the mower during operation.
10) Do not change the governor settings or over speed the engine.
11) Always stop the engine whenever you leave the mower, even for a
moment.
When operating your DEK lawn mower, wear protective clothing
while mowing. Long pants and safety glasses will help reduce
the risk of injury from thrown objects. It is recommended that
adequate footwear, such as steel toe shoes with aggressive
soles, be worn to help protect your feet and maintain traction on
slopes or uneven grounds. Always wear hearing protection.
Inspecting Your Lawn Mowing Area
12) To help reduce the risk of a fire hazard, keep the engine and the area
around the engine free of grass, leaves or any other type of foreign
material.
13) Beware of cutting edges. Always wear gloves for safety when perform-
ing blade maintenance activities. Beware on multiple blade units since
the rotation of one blade may cause the rotation of the other blade.
14) Do not store or operate the mower with the grass chute deflector in the
raised position. Serious injury could occur.
Inspect the area where your DEK lawn mower will be used. Check for
stones, sticks, wire, and other foreign objects. These objects may
become projectiles that can cause serious injury and/or death when
struck by the mower.
DEK® is exclusively distributed by GXi International, LLC
4 of 21
Rev: 8/2008
Download from Www.Somanuals.com. All Manuals Search And Download.
Heavy Duty Power Equipment
36B, 36BX, 36H, 36HX, 52H, 52HX
Safety Decals & Product Specifications
IMPORTANT! The mower belts are adjusted to ensure the blades stop turning within 7 seconds of releasing the
blade control lever. If you are making any belt adjustments whatsoever, for your safety and the safety of others
around you, you must ensure the belts are re-adjusted to achieve this design specification.
Safety Decal Identification
The labels found below are located on your mower to warn you of potential hazards and provide you with important
safety information. If these decals become difficult to read or are missing from the mower, please contact your DEK
mower dealer for a replacement.
Product Specifications
Models
Lawn Mower
Product Type
Cutting Width
Engine
36B
Commercial, 0-turn
36”
36BX
Commercial, 0-turn
36”
36H
36HX
Commercial, 0-turn
36”
52H
Commercial, 0-turn
52”
52HX
Commercial, 0-turn
52”
Commercial, 0-turn
36”
11hp Honda
Recoil
13hp DEK
13hp Honda
Recoil
14hp DEK
16hp Honda, v-twin
Electric
14hp DEK
Electric
Engine Start
Transmission Type
Manufacturer
Speeds
Electric / Recoil
Gear
Electric / Recoil
Hydrostatic
Hydro-Gear
Variable
Gear
Hydrostatic
Hydro-Gear
Variable
Hydrostatic
Hydro-Gear
Variable
Hydrostatic
Hydro-Gear
Variable
Peerless
Peerless
5 forward/1 reverse
5 forward/1 reverse
Floating,
quick change
Floating,
quick change
Floating,
quick change
Floating,
quick change
Floating,
quick change
Floating,
quick change
Deck Type
1.5”- 4.5”
½” increments
1.5”- 4.5”
½” increments
1.5”- 4.5”
½” increments
1.5”- 4.5”
½” increments
1.5”- 4.5”
½” increments
1.5”- 4.5”
½” increments
Cutting Height
Blade Engagement
Blade Tip Speed
Anti-Scalping Rollers
No. Blades/ Length
Control System
Manual clutch
18,750 ft/min
None
Manual clutch
18,750 ft/min
None
Manual clutch
18,750 ft/min
None
Manual clutch
18,750 ft/min
None
Manual clutch
18,750 ft/min
3 front/2 rear
3/18”
Manual clutch
18,500 ft/min
3 front/2 rear
3/18”
2/18”
2/18”
2/18”
2/18”
Pistol Grip
Gasoline/4.5 gals.
Pistol Grip
Gasoline/4.5 gals.
EZ Lever
EZ Lever
EZ Lever
EZ Lever
Fuel/Capacity
Gasoline/4.5 gals.
Gasoline/4.5 gals.
Gasoline/4.5 gals.
Gasoline/4.5 gals.
13” X 6.5”
turf tread
13” X 6.5”
turf tread
16” X 6.5”
turf tread
16” X 6.5”
turf tread
18” X 8.5”
turf tread
18” X 8.5”
turf tread
Rear Drive Tires
9” X 3.5”
smooth tread
9” X 3.5”
smooth tread
9” X 3.5”
smooth tread
9” X 3.5”
smooth tread
9” X 3.5”
smooth tread
9” X 3.5”
smooth tread
Front Caster Tires
Brake System
Hydraulic service/
Hydraulic service/
Hydraulic service/
Hydraulic service/
6” band brakes
6” band brakes
manual parking break manual parking break manual parking break manual parking break
Weight
Approx. 450 lbs.
45” x 72”
Approx. 450 lbs.
45” x 72”
Approx. 450 lbs.
45” x 72”
Approx. 450 lbs.
45” x 72”
Approx. 510 lbs.
45” x 72”
Approx. 510 lbs.
45” x 72”
Height/Length
DEK® is exclusively distributed by GXi International, LLC |