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Table of Contents
2. Drive chain (one for each drive wheel): every other oil
change, inspect the chains. To access the chains, remove
the cover plates fastened to both ends of the drive housing.
Refer to the appropriate Sprocket Drive Subassembly on
pages 23
and 24.
A. Check the tension of both chains. They should not be
taut but also should not be so loose that they slap
against the housing or jump on the sprockets. Adjust
the chains by applying pressure to the hex head with a
wrench while loosening the lock nut.
B. Check set screws on the front and rear sprockets,
drive shaft coupling, motor pulley, and pump
pulley. Confirm that the set screws are tight. Tighten
all loose screws. Apply thread locker to keep
connections tight.
C. The front wheel sprocket should line up with the axle
sprocket
D. Lubricate the drive chains with spray grease as
needed, e.g. if the drive train becomes noisy.
3. At least once per month, remove the drive belt guard.
Determine the condition of the drive belt (Exploded Views on
pages 9-17; part number 50-042-008; 50-042-009; or 50-042-
010) and drive pulley (part number 50-027-003; or 50-027-
004). Unseat the belt from the drive pulleys to relieve belt
tension. Then, examine the pump assembly (part number 50-
643-012 or 50-643-001): Idler pulley on top of the pump as
well as the pump bearings and shaft. Look for damage and
significant wear. Replace any component that is significantly
worn, in particular, the belt.
4. Check the hydraulic system.
a. Before each use:
i.
Cycle the carriage all the way up and then all the way down. Movement should be smooth in both
directions, i.e. no binding, jumps, skips.
ii.
Check the hydraulic hoses for signs of wear, kinks, cuts, etc. Replace damaged hoses.
b. At least once per month, examine the hydraulic oil. The oil reservoir is located next to the hydraulic pump.
First, fully lower the carriage. Remove the brass fill plug from the top of the reservoir and examine the oil.
Change the oil if it darkens, becomes gritty, or has a milky appearance (indicating that water is present).
Replace the oil with AW-32 hydraulic fluid or its equivalent.
c. Before each use,
5. Before each use make sure all labels are in place & in readable condition. See
6. Periodically clean dirt and debris from all surfaces to keep the finish in good condition. Store the unit indoors.
Table of Contents
8/7/2019
Drive belt
guard
Copyright 2019 Vestil Manufacturing Corp.
ALL-T-2/4-GPT MANUAL
Chain guard
Cover
plate
Hex
head
Labeling diagram
Page 8 of 26
Cover
plate
Lock
nut
Drive
housing
on p. 25.
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