MasterCraft PU850 User manual

21” Gas Powered
Lawn Mower
WARNING! To Reduce The Risk Of Injury, User
Must Read And Understand Instruction Manual.
Owner’s Manual
Model# SP-PM137GMC
Item# PU850
12/2012

Introduction
This rotary-blade, walk-behind lawn mower is intended to
be used by residential homeowners or professional, hired
operators. It is designed primarily for cutting grass on well
-maintained lawns on residential or commercial properties.
It is not designed for cutting brush or for agricultural uses.
Read this information carefully to learn how to operate
and maintain your product properly and to avoid injury
and product damage. You are responsible for operating
the product properly and safely.
You may contact
ALL-POWER directly at 888-896-6881
for product and accessory information, help
finding a dealer, or to register your product.This manual
indentifies potential hazards and has safety messages
indentifies by the safety alert symbol (Figure 1), which
signals a hazard that may cause serious injury or death
if you do not follow the recommended precautions.
Figure 1
1. Safety alert symbol
This manual uses two words to highlight information.Imp-
ortant calls attention to special mechanical information
and Note emphasizes general information worthy of spe-
cial attention.
Important:This engine is not equipped with a spark arrest-
er muffler. It is a violation of California Public Resource
Code Section 4442 to use or operate the engine on any
forest covered, brush-covered, or grass-covered land.
Other states or federal areas may have similar laws.
The enclosed Engine Owner’s Manual is supplied for
information regarding the US Environmental Protection
Agency (EPA) and the California Emission Control
Regulation of emission systems,maintenance, and warra-
nty. Replacements may be ordered through the engine
manufacturer.
For models with stated engine horsepower, the gross
horsepower of the engine was laboratory rated by the
engine manufacturer in accordance with SAEJ1940.As
Configured to meet safety, emission, and operating
requirements, the actual engine horsepower on this class
of lawn mower will be significantly lower.
Warning
CALIFORNIA
Proposition 65 Warning
The engine exhaust from this product
contains chemicals known to the State
of California to cause cancer, birth defects,
or other reproductive harm.
Do not tamper with the engine controls or alter the gove-
rnor speed; doing so may create an unsafe condition
resulting in personal injury.
Safety
This lawn mower meets or exceeds the CPSC blade
safety requirements for walk-behind rotary lawn mowers
and the B71.1 of the American National Standards Instit-
ute in effect at the time of production.
Read and understand the contents of this manual before
you start the engine.
The safety alert symbol (Figure 1) is used to alert you
to potential personal injury hazards. Obey all safety
messages that follow this symbol to avoid possible injury
or death. Improperly using or maintaining this mower
could result in injury or death. To reduce this potential,
comply with the following safety instructions.
The following instructions have been adapted from the
ANSI/OPEI standard B71.1-2003.
This cutting machine is capable of amputating hands and
feet and of throwing objects. Failure to observe the foll-
owing safety instructions could result in serious injury or
death.
General Operation
machine and in the manual(s) before starting.
Keep clear of the discharge opening at all times.
instructions, to operate this machine.
which could be thrown by the blade. Stay behind the
handle when the engine is running.
Stop machine if anyone enters the area.
sandals. Always wear substantial footwear.
ssary. Always look down and behind before and while
moving backward.
discharging material against a wall or obstruction. Mate-
rial may ricochet back toward the operator. Stop the
blade when crossing gravel surfaces.
discharge guard, rear guard, or other safety protective
devices in place and working.
complete stop before cleaning the machine, removing
grass catcher, or unclogging the discharge guard.
1

ALL-POWER

• Height adjustment: Single lever 5 position height
adjustment. From .8” to 2.8”. Pull lever to desired height
to mow the grass. see (Figure 7):
• Deflector Installation: see (Figure 8)
Note: The product has two functions for grass-cutting: cut the grass
and discharge it through the deflector; cut and chop the grass, then
mulch the ground with the chopped grass.
• If the mulching function is not required, the deflector should be
mounted on the base component (see Figure 8). The deflector
should point to the direction of the mowed lawn, in order to keep the
discharging smooth during the mowing process. When mowing high
and dense grass, the operator should often observe the discharging
effect, and stop or slow down the moving speed if poor discharging
is found, should not proceed until the high-speed air flow blows all
cut grass away. If the deflector is completely blocked, the engine
should be turned off right away and the discharging door needs to
be cleared up.
• If the mulching function is required, the deflector should be
removed from the base component and the discharging door should
be covered to achieve the mulching purpose (see Figure 8). The
engine must be off when operating.

(Not Included)
Steele®

PART # KEY # DESCRIPTION
DJXZ46H.2.2-1 1 THROTTLE CONTROL BAR
DJXZ46H.2.1-1 2 UPPER HANDLE
GB/T6189-86 3 HEX HEAD FLANGE NUT (M6)
DJXZ46H.2.1-8 4 ADJUSTING KNOB
DJXZ46H.2.1-7 5 NON-STANDARD BOLT (M8X45)
DJXZ46H.2.1-2 6 LOWER HANDLE
GB/T6187-86 7 HEX HEAD FLANGE NUT (M8)
GB14 8 CARRIAGE BOLT (M8X15)
JDXS51C.2.6-2 9 RIGHT HANDLE BRACKET
JDXS51C.2.2-2 10 BRAKE CABLE
GB/T5789-86 11 HEX HEAD FLANGE BOLT (M6X35)
JDXZ46H.2.1-9 12 HANDLE SHEATH
GB/T5789-86 13 HEX HEAD FLANGE BOLT (M8X15)
JDXZ46H.2.6-1 14 LEFT HANDLE BRACKET
GB/T6178-86 15 HEX HEAD FLANGE NUT (M8)
GB/T14 16 PHILLIP SCREW (M5X12)
JDXS51C.4.2-2 17 MUDFLAP
GB/T97.2-85 18 FLAT WASHER (5X1X15)
GB/T6189-86 19 NUT (M5)
GB/T5789-86 20 HEX HEAD FLANGE BOLT (M6X12)
JDXS51CB.4.1-3 21 SIDE DISCHARGER BRACKET
GB/T6189-86 22 HEX HEAD FLANGE NUT (M6)
JDXS51C.1 23 BASE COMPONENT
JDXS51CB.2.5-8 24 TENSION SPRING
JDXS51CB.2.5-6 25 LINKAGE
JDXZ46H.3.1-2 26 REAR AXLE RETAINER
GB/T5789-86 27 HEX HEAD FLANGE BOLT (M6X20)
JDXS51C.2.5-5 28 HEIGHT ADJUSTING PLATE
GB/T6189-86 29 HEX HEAD FLANGE NUT (M6)
JDXZ46H.3.1-3 30 AXLE CLAMP
GB/T97.2-85 31 FLAT WASHER (M8)
GB/T94 32 LOCK WASHER (M8)
GB/T5783-86 33 HEX HEAD BOLT (M8X30)
JDXS46C.3.1-2 34 FRONT AXLE RETAINER
JDXS51CB.3.4-1 35 REAR WHEEL (12")
GB/T5789-86 36 HEX HEAD BOLT (M5X12)
JDXS51CB.3.2-1 37 REAR AXLE ASSEMBLY
GB/T6189-86 38 HEX HEAD FLANGE NUT (M5)
JDXS51C.2.5 39 ADJUSTING LEVER
JDXZ46H.2.7-1 40 HAND GRIP
JDXS51CB.4.1-5 41 DEFLECTOR
JDXS51CB.4.1-1 42 DISCHARGING DOOR COVER
JDXS51CB.4.1-2 43 DISCHARGING DOOR COVER SHAFT
JDXS51CB.4.1-4 44 TORSION SPRING
JDXS46H.5.3 45 FLAT KEY
JDXS51CB.3.1-1 46 FRONT AXLE ASSEMBLY
GB/T91 47 COTTER PIN
JDXS51CB.3.3-1 48 FRONT WHEEL (7")
GB/T6189-86 49 NUT (M8)
JDXZ46H.5.2 50 BLADE MOUNT
JDXZ46H.5.3-2 51 GROMMET WASHER
JDXS51C.5.3-1 52 HEX HEAD BOLT (3/8X24X35)
JDXS51C.5.1 53 BLADE
JD1P64 54 ENGINE ASSEMBLY
PARTS LIST

13
LIMITED WARRANTY
All-Power warrants to the original purchaser who uses the product in a consumer
application (personal, residential or household usage) that all products covered under this
warranty are free from defects in material and workmanship for 2 years (1 Year parts and labor
2nd year parts only) from the date of purchase. All products covered by this limited warranty
which are used in commercial applications (i.e. income producing) are warranted to be free
of defects in material and workmanship for 90 days from the date of original purchase. Products
covered under this warranty include air compressors, air tools, service parts, pressure washers
and generators.
All-Power will repair or replace at their sole option, products or components which have
failed within the warranty period. Service will be scheduled according to the normal work
flow and business hours at the service center location, and the availability of replacement
parts. All decisions of All-Power with regard to this limited warranty shall be final.
This warranty gives you specific legal rights, and you may also have other rights which
vary from state to state.
RESPONSIBILITY OF ORIGINAL PURCHASER (Initial User):
To process a warranty claim on this product, DO NOT return item to the retailer. The
product must be evaluated by an Authorized Warranty Service Center. For the location of
the nearest Authorized Warranty Service Center contact the retailer or place of purchase.
Retain original cash register sales receipt as proof of purchase for warranty work.
Use reasonable care in the operation and maintenance of the product as described in the
Owner’s Manual(s).
Deliver or ship the product to the nearest Authorized Warranty Service Center. Freight
costs, if any, must be paid by the purchaser.
Air compressors with 60 and 80 gallon tanks will be inspected at the site of installation.
Contact the nearest Authorized Warranty Service Center that provides on-site service calls
for service call arrangements.

14
LIMITED WARRANTY (cont’d)
THIS WARRANTY DOES NOT COVER:
Merchandise sold as reconditioned, used as rental equipment, or floor or display
models.
Merchandise that has become damaged or inoperative because of ordinary wear,
misuse, cold, heat, rain, excessive humidity, freeze damage, use of improper
chemicals, negligence, accident, failure to operate the product in accordance
with the instructions provided in the Owner’s Manual(s) supplied with the
product, improper maintenance, the use of accessories or attachments not
recommended, or unauthorized repair or alterations. Repair and transportation
costs of merchandise determined not to be defective. Costs associated with
assembly, required oil, adjustments or other installation and start-up costs.
Expendable parts or accessories supplied with the product which are expected
to become inoperative or unusable after a reasonable period of use.
Merchandise which has been manufactured by and identified as the product
of another company, such as gasoline engines. The product manufacturer's
warranty, if any, will apply.
ANY INCIDENTAL, INDIRECT OR CONSEQUENTIAL LOSS, DAMAGE, OR
EXPENSE THAT MAY RESULT FROM ANY DEFECTS, FAILURE OR
MALFUNCTION OF THE PRODUCT IS NOT COVERED BY THIS
WARRANTY. Some states do not allow the exclusion, so it may not apply to you.
IMPLIED WARRANTIES, INCLUDING THOSE OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED TO TWO YEARS
FROM THE DATE OF ORIGINAL PURCHASE. Some states do not allow
limitations on how long an implied warranty lasts, so the above limitations may not
apply.
DO NOT RETURN TO STORE
For Technical Assistance Please Call 888-896-6881
STOP